Q. Which of the following component is not used in Ward Leonard method?

View solution

Q. In Ward Leonard speed control method for lowering the speed of the motor ______________

View solution

Q. Reducing the armature voltage will give us _______________

View solution

Q. In Ward Leonard speed control method for increasing the speed of the motor ______________

View solution

Q. Reducing the field current will give us _______________

View solution

Q. Speed-power characteristic for Ward Leonard speed control method _________________

View solution

Q. Efficiency of Ward Leonard method is ____________

View solution

Q. Ward Leonard method is an ideal choice for motor which undergoes frequent starting, stopping, speed reversal.

View solution

Q. Starting gear used in Ward Leonard method___________

View solution

Q. To get the speed of DC motor below the normal speed without wastage of electrical energy we use __________________

View solution

Q. Speed control by Ward Leonard method, can give uniform speed variation _______________

View solution

Q. Ward Leonard control is basically a _____________

View solution

Q. In Ward Leonard control of DC motor, the lower limit of speed is imposed by ____________

View solution

Q. The disadvantage of the Ward Leonard control method is ___________

View solution

Q. Which of the following is the best braking method?

View solution

Q. DC motor is still widely used in tractions due to its excellent braking properties.

View solution

Q. Which of the following is not the method of electrical braking?

View solution

Q. Which of the following is the plugging method of braking?

View solution

Q. Which of the following is correct formula for braking torque in plugging?

View solution

Q. Electrical braking of any variety becomes less effective as ________________

View solution